– No Windows 12 announcement is confirmed.
– AI-first event centered on agents, Copilot, and Azure AI Foundry.
– Azure AI Foundry is a major focus for multi-model routing and cost governance.
– Windows local AI and Copilot Runtime APIs are a dedicated track.
– GitHub Copilot sessions cover agentic workflows and multi-agent integration.
Microsoft’s big developer shindig kicks off in San Francisco on June 2
The company has confirmed its main focus well ahead of time, with Build 2026 running June 2-3 at Fort Mason Center. Satya Nadella’s keynote will stream from 9:30 a.m. PT, and Microsoft has explicitly said there will be no Windows 12 announcement on the agenda.
Session catalog and confirmed theme’s
According to the official website, which already lists the session catalog, this is an AI-first developer event built around agents, Copilot, Azure AI Foundry, and Windows local AI capabilities. The event spans agentic AI workflows, advances in GitHub Copilot, Azure AI Foundry platform updates, Windows-native AI development, and responsible AI tooling. Microsoft Agent 365, which is its enterprise control plane for AI agents, reached general availability on May 1, 2026, and Build is expected to expand on that foundation.
Azure AI Foundry: a central thread across sessions
Microsoft Foundry already supports models from OpenAI, Anthropic, Mistral, DeepSeek, and others, and Build sessions are expected to cover how developers route across those models, manage costs, and deploy agents into production. Cost governance has been a recurring theme from Microsoft’s recent enterprise communications, and Build will address how organizations monitor token consumption and enforce responsible AI policy at the platform level.
Windows local AI and GitHub Copilot get dedicated tracks
Windows local AI is confirmed as a dedicated track at Build 2026. Microsoft has been building out on-device AI capabilities through Windows 11’s Copilot Runtime, and Build will provide developers with the APIs and tooling to build on that stack. The May 30 Windows 11 Insider build already introduced a fully customisable Start menu and expanded local AI capabilities, pointing to where the platform is heading ahead of the keynote. GitHub Copilot is also a confirmed focus area, with sessions covering agentic coding workflows, multi-agent support inside VS Code, and deeper GitHub-Azure integration. Copilot CLI reached general availability in March 2026, and Build is expected to extend that into multi-agent terminal workflows.
Streaming details and availability
The keynote streams free at build.microsoft.com and on Microsoft’s YouTube channel from 9:30 a.m. PT on June 2. All sessions will be available on demand after the event.